Tag Archives: Festival of Speed

Wrecked Prototype Reincanated – Nimrod Aston Martin NRAC/1 #001

With a world caravan speed record in his pocket set with his twin turbocharged Aston Martin ‘Muncher’ Robin Hamilton came to an agreement with Aston Martin Chairman Victor Gauntlet to enter a partnership to form Nimrod in 1981 which set out to build Aston Martin powered prototype Group C and GTP racing cars.

Nimrod Aston Martin NRA/C2, Goodwood Festival of Speed

The design of the cars was credited to Eric Broadley, though I have always had my doubts about the extent of his involvement because the design does not feature ground effect aerodynamics that were de rigeur in Formula One and becoming rampant in prototype sports cars such as Eric’s contemporary Lola T600 Group C / IMSA GTP design shows.

Nimrod Aston Martin NRA/C2, Goodwood Festival of Speed

The Nimrod chassis tubs were certainly built by Lola, they were known in the Lola factory as T385’s and the cars do appear to bear a familial resemblance to the smaller open Lola T380 of the type Alan de Cadanet purchased in 1975. The heavily modified Aston Martin V8’s were prepared initially by Aston Martin Tickford and later by Aston Martin Lagonda.

Nimrod Aston Martin NRA/C2, Goodwood Festival of Speed

It is believed that the 1981 car, seen here at the Goodwood Festival of Speed, belonging to the Louwman Museum is the rebuilt wreck of the prototype that crashed before ever turning a wheel in open competition, that was never raced subsequently either.

Nimrod Aston Martin NRA/C2, Goodwood Festival of Speed

The Nimrods turned out to be underfunded and inevitably disappointed, the works cars best result, in second generation NRAC/2 guise that appeared in 1982, was a 5th place finish in the IMSA GTP series which fell to Reggie Smith, Lyn St. James and Drake Olson in the 1983 Sebring 12 Hours. At the end of the season Nimrod Racing folded.

The best Nimrod finish in the World Sports Car Group C series fell to Ray Mallock and Mike Salmon on the Nimrods debut at the 1982 Silverstone 6 Hours. This private entry by Viscount Downe was independently developed by Ray Mallock until 1984 and proved quicker and more reliable than the works entries scoring the marques only Le Mans finish in 1983 when Ray and Mike were joined by Simon Philips and finished 7th from 23rd on the grid.

In 1983 for the Daytona 24 Hours Nimrod manged to team up both 4 time Indy 500 winner and one time Daytona 500 Winner AJ Foyt up with fellow Daytona 500 winner and three time NASCAR Cup winner Darrell ‘Jaws’ Waltrip and an unknown Argentinian Guillermo Maldonado with Darrell’s sponsor Pepsi in their lead #11 car.

They qualified 13th, but retired with engine failure to be classified 54th. AJ who had not driven the car in the race moved over to join Preston Henn in the Henn’s Swap Shop Porsche 935 and shared a victory with Preston, “Brilliant” Bob Wollek and Claude Ballot-Lena.

Thanks for joining me on this “Wrecked Prototype Revived” edition of “Gettin’ a li’l psychoontyres” I hope you will join me again for Maserati Monday tomorrow. Don’t forget to come back now !

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New Rules Same Result – Audi R18 TDI #106

New regulations, mandating a smaller motor and smaller fuel cell presented Audi with a new challenge for it’s 2011 Le Mans Challenge.

Audi R18 TDI, Goodwood Festival of Speed

Ulrich Baretzky was responsible for designing R18 TDI to meet the new challenge and elected for a Coupé body,

Audi R8C, Goodwood Festival Of Speed

a body type not seen on an Audi Le Mans challenger since the Peter Elleray designed Audi R8C, seen above, built in 1999.

Audi R18 TDI, Goodwood Festival of Speed

The single piece carbon-fiber composite aluminum honeycomb monocoque was manufactured by Dallara in Italy.

Audi R18 TDI, Goodwood Festival of Speed

To improve the handling the R18 TDI is fitted with taller and wider front tyres, by effectively moving the mass of the car forwards the balance of the the car is better optimised for to create better front tyre temperatures which improve mechanical grip.

Audi R18 TDI, Goodwood Festival of Speed

The L shaped tube in front of the cockpit is a Pitot tube for measuring airflow, this could be useful information for determining the aerodynamic balance of the car or more likely to help the engineers determine the engine settings for the motor which is fed air by the duct above the cockpit.

Audi R18 TDI, Goodwood Festival of Speed

Unlike the previous R15 TDI Le Mans challengers fitted with a pneumatic gear selection system the R18 TDI six speed gearbox was fitted with an electronic gear change system, the main benefit of which was to save weight.

Audi R18 TDI, Goodwood Festival of Speed

The fuel tank situated behind the cockpit was restricted to 65 litres / 14 imperial gallons comparable to that found in a large, European, daily driver.

Audi R18 TDI, Goodwood Festival of Speed

The motor was restricted in size to just 3.7 litres / 225 cui for turbocharged diesel powered motors and so a single turbocharged V6 replaced the twin turbocharged 5.5 litre / 335 cui V10 used to power the Audi R15 TDI.

Audi R18 TDI, Goodwood Festival of Speed

With only 532 hp, adown from 590 hp on the previous years V10 the R18 TDI chassis #106 seen here at Goodwood, driven by Benoit Tréluyer, Marcel Fässler, Andre Lotterer was three seconds a lap slower than the 2010 R15 TDI Plus, but still qualified on pole for the 2011 Le Mans 24 hour race.

Audi R18 TDI, Goodwood Festival of Speed

The 2011 Le Mans 24 hours proved to be a game of cat and mouse between the Audi and Peugeot teams. Audi had the advantage of outright speed, good tyre durability – capable of going 44 laps on a set of slicks, but poor fuel economy – only going 11 laps on a tank of diesel.

Audi R18 TDI, Goodwood Festival of Speed

Peugeot meanwhile could run 12 laps on a tank of diesel, but only 36 laps on a set of tyres.

Audi R18 TDI, Goodwood Festival of Speed

Audi’s cause was not helped when Allan McNish crashed the #3 entry out of the race in the first hour after tangling with a back marker in an incident from which everyone miraculously managed to walk away.

Seven hours later the #1 Audi driven by Mike Rockenfeller was involved in a similar incident from which he also walked away.
After the a 2 hour safety car period during which the track safety barriers were repaired the #1 Audi was left to fend off a three car onslaught from the diesel V8 powered Peugeot’s which did not suffer their first serious set back until the #7 Peugeot driven by Alexander Wurz hit the barriers and lost 3 laps.

The #1 Audi driven by Benoit, Marcel and Andre manged to pit for the final time without losing the lead and held on to cross the line, just 13 seconds ahead of the fastest Peugeot after 24 hours of racing.

#106 seen here a couple of weeks after the victory appears to have been retired from active competition thereafter. Apart from the Le Mans test weekend in April 2011 where Marco Bonanomi joined the cars regular squad of three drivers to set 4th fastest time the cars only other appearance was in the Spa 1000kms where Benoit, Marcel and Andre finished 5th from 2nd on the grid.

Thanks for joining me on this “New Rules Same Result” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow when I’ll be looking at a British Group C Le Mans Challenger. Don’t forget to come back now !

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Racing Van – Maserati 151/3 Recreation

Parts of today’s featured car started life as the Maserati France entered Maserati 151 chassis #151.002 which raced at Le Mans in 1962 alongside Briggs Cunningham’s chassis #151.004 and #151.006, the latter which I looked at last Monday.

Maserati 151/4, Goodwood Festival of Speed

#151.002 was driven by Maurice Trintignant and Lucien Bianchi in the 1962 Le Mans 24 Hours qualifying 7th, slowest of the three Maserati 151 models and retiring after completing 152 laps with suspension issues.

Maserati 151/4, Goodwood Festival of Speed

In April 1963 #151.002 reappeared at the Le Mans Test with a 5 litre / 302 cui V8 motor replacing the original 4 litre / 244 cui unit. André Simon and Lloyd Casner drove the car to the 4th fastest time and returned in June to qualify 5th for the 24 Hour race but retired after 40 laps with gearbox issues.

Maserati 151/4, Baxter / Mass, Goodwood Revival

#151.002, also known at the time as 151/2, appeared in three more events in 1963 scoring a best 8th place finish in the Trophée d’Auvergne at Clermond Ferrant (F) with Lucien Bianchi at the wheel.

Maserati 151/4, Baxter / Mass, Goodwood Revival

For 1964 #151.002 was further upgraded with a dry sump motor mounted lower in the chassis which was also altered to accommodate wire tires and wheels. Finally the car also had a new Piero Drogo penned unpainted aluminium body fitted just in time for the 1964 Le Mans test, the new body quickly earned the “Racing Van” sorbriquet.

Maserati 151/4, Goodwood Festival of Speed

Maurice Trintignant and France’s Maserati importer André Simon set 4th fastest time in the reworked Maserati and found it capable of 196 mph on the Mulsane straight. For the ’64 Le Mans race the Maurice and André qualified #151.002 15th, but retired after 99 laps with electrical issues. The same drivers were entered to drive #151.002 in two more events but retired with ignition issues from the Reims 12 Hours and after an accident from the Paris 1000 kms at Circuit de Linas-Montlhéry.

For 1965 the final incarnation of #151.002 also known as 151/4 included fitting a slightly larger 5055cc / 308 cui V8 which produced 450 hp. The car was again taken to the Le Mans Test weekend where Lloyd “Lucky” Casner of Camoradi Racing Team fame met his untimely demise in #151.002 at the kink on the Mulsanne Straight being fatally thrown from the car which was effectively destroyed in the accident.

During the 1980’s Herr Kaus of the Bianco Museum owned one of the 151/3 spec motors from the crashed #151.002, as he did the uncrashed #151.006 car, and was supplied by Maserati with drawings to build a new 151/3 spec chassis and the original 151/3 body buck so that Sig Allegretti, who built the original body, could build another !

Herr Kaus never got the project finished, but more recently Barrie Baxter, seen sharing the car with Jochen Mass at Goodwood Revival, has.

My thanks to Doug Nye and driverider at The Nostalgia Forum for their comments.

Thanks for joining me on this “Racing Van” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow. Don’t forget to come back now !

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V10 Turbo Diesel – Audi R15 #105

After securing 3 consecutive wins with the Turbo Diesel R10 TDI and fifth win on the trot going back to 2004 when Audi R8 was still active Audi came up with a completely new design with a new motor for their 2009 Le Mans challenge.

The new design was precipitated by a change in regulations mandating reduced air consumption and reduced turbo boost pressure. Audi’s R15 featured a much slimmer monocoque and a lighter 600hp V10 turbo diesel replaced the 700hp V12 of the R10.

Audi R15 TDI, Goodwood Festival of Speed

Audi started their 2009 R15 programme with a win in the Sebring 12 hours where Allan McNish, Tom Kristensen and Rinaldo Capello beat the rival Peugeot 908 driven by Franck Montagny, Stéphane Sarrazin and Sébastien Bourdais by just over 22 seconds.

At Le Mans Allan, Tom and Rinaldo qualified today’s featured car chassis #105 2nd behind the Peugeot driven by Franck, Stéphan and Sébastian.

Audi R15 TDI, Goodwood Festival of Speed

During the race it became apparent that Peugeot had the faster cars and #105 eventually lost six laps on the winning 908 driven by David Brabham, Marc Gené and Alexander Wurz. Allan, Tom and Rinaldo eventually finished third in #105 5 laps down on the second place 908 driven by Franck, Stéphan and Sébastian.

The sister R15 driven by Mike Rockenfeller, Lucas Luhr and Marco Werner retired after an accident while the third R15 driven by Alexandre Prémat, Timo Bernhard and Romain Dumas finished a distant 17th.

Audi R15 TDI, Goodwood Festival of Speed

Chassis #105, seen at Goodwood Festival of Speed shortly after Le Mans in 2009, was upgraded to R15 Plus spec for 2010, but it only appeared once and then only as a T-Car driven in practice for the 2009 Petit Le Mans at Road Atlanta for Allan, Tom and Rinaldo.

Thanks for joining me on this “V10 Turbo Diesel” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow when I’ll be looking at a 1962 Aston Martin Zagato. Don’t forget to come back now !

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Old Number 5 – Lagonda V12 #14089

Despite winning Le Mans in 1935 Lagonda looked to be going the same way as Bentley financially until it was rescued with an injection of cash by it’s new chairman 30 year old Alan Good.

Good hired two former Rolls Royce employees to design today’s featured car, none other than W.O. Bentley himself was responsible for the chassis while his colleague Stuart Tresilian was responsible for the 4.5 litre / 274 cui single overhead cam V12 motor.

Lagonda V12, Goodwood Festival of Speed

In late 1938 early 1939 Good announced that he would like to enter a Lagonda V12 into the 1939 Le Mans 24 Hours race.

W.O. Bentley who was to be prepare the car, originally designed as a production vehicle and never intended for racing, was adamant that this should only be done to see if the cars would last the distance in anticipation of a full onslaught in 1940 to which Good agreed.

Lagonda V12, Goodwood Festival of Speed

A short V12 chassis was lightened by drilling out as much dead weight as possible from the chassis members and independent front suspension arms. The V12 aluminium block motor was fitted with four carburetors and produced over 200 hp.

Good had hoped that Mercedes Benz star Richard “Dick” Seaman would drive chassis #14089 but Mercedes objected and so leading ERA runner Arthur Dobson was joined by Brooklands regular Charles Brackenbury at the wheel of the car which would become known as Old Number 5.

Lagonda V12, Goodwood Festival of Speed

During the preparations Lord Selsdon came into a substantial inheritance and persuaded Alan Good to enter a second car which he was to share with Lord William Waleran.

Observing strict instructions from W.O. the drivers of the two Lagonda’s lapped at a pre arranged speed and they completed 239 laps and 238 laps respectively, four more than the 235 laps completed by the winning Delahaye in 1938, but short of the 248 laps recorded Jean-Pierre Wimille and Pierre Veyron in their winning supercharged Bugatti type 57C.

Lagonda V12, Goodwood Festival of Speed

The Lagondas finished third and forth behind the Ecurie Walter Watney Delage with Old Number 5 ahead of it’s sister to secure first and second in the over 5 litre / 302 cui class.

Dick Seaman tragically was killed at Spa after an accident in his Mercedes Benz the following week.

The beginning of hostilities in 1939 meant the 1940 Le Mans 24 hours would not take place and so the Lagonda V12’s never got the chance to prove their true potential although they did finish first and second in one of the last races run at Brooklands before war broke out.

Lord Selsdon would, briefly, share the winning 1949 Le Mans winning Ferrari 166MM with Luigi Chinetti.

While Old Number 5 seen here at last years Goodwood Festival of Speed would briefly end up in the hands of Fighter Pilot and Racing Driver Robert, later Roberta, Cowell.

After war Lagonda became part of David Brown’s portfolio which included Aston Martin and was merged to become Aston Martin Lagonda.

Thanks for joining me on this “Old Number 5” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow for Maserati Monday when I’ll be looking at the prototype Maserati Tipo 60. Don’t forget to come back now !

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Diesel Über Alles – Audi R10 TDI #102

After winning Le Mans five times from six attempts between 2000 and 2005, interrupted only by Bentley with it’s Audi derived V8 motor, Audi entered the 2006 season with a real game changer.

The turbocharged 5.5 litre V12 335 cui motor used to power the Audi R10 TDI was to run on diesel, and thus reopen a frontier of development in top line motorsport not seriously looked at since the turbocharged Cummins Diesel Special appeared at Indianapolis Motor Speedway in 1952.

Audi R10 TDI, Goodwood Festival of Speed

Chassis #102 seen here at Goodwood Festival of Speed appeared in just six races in 2006, after being the fastest car in testing at the Sebring it disgraced it’s self by retiring with an overheating motor in the Sebring 12 hours with Frank Biela, Marco Werner and Emanuele Pirro at the wheel. It’s sister car chassis #101 driven by Rinaldo Capello, Tom Kristensen and Allan McNish became the first diesel powered vehicle to win an international sports car race.

The #102 was 4th fastest on it’s next appearance at the Le Mans test day and two weeks later qualified second for the 2006 Le Mans 24 Hour Race with the Frank, Marco and Emmanuel again sharing the driving.

Audi R10 TDI, Goodwood Festival of Speed

The 2006 Le Mans 24 Hours was won by today’s featured car which finished four laps ahead of the petrol powered Pescarolo Sport C60 Hybrid driven by Rally legend Sebastian Loeb with Eric Hélary and Franck Montagny.

After Le Mans #102 was sent back to the States to compete in the American Le Mans series where it competed in four more events with Emanuele Pirro and Frank Biela sharing the car for two second place finishes at Portland and Laguna Seca.

The R10 TDI claimed two further Le Mans victories in 2007 and 2008 and every Le Mans winner between 2006 and 2011 would be diesel powered with Peugeot interrupting the Audi juggernaut with it diesel powered 908 HDI in 2009. In 2012 and 2013 Audi continued winning Le Mans with it’s diesel electric hybrid R18 e-tron quattro model.

Thanks for joining me on this “Diesel Überalles” edition of “Gettin’ a li’l psycho on tyres”, I hope you will join me again tomorrow for another pre ’39/’45 war British Le Mans competitor designed by W.O.Bentley, that is not a Bentley. Don’t forget to come back now !

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Smaller, Lighter, RHD – Cunningham C6R

After experiencing less than outright success at Le Mans with the Cadillac Le Monstre Cunningham in 1950, Chrysler powered Cunningham C2R in 1951, similarly powered C4R in 1952 and C5R in 1953 Briggs Cunningham decided that three short comings of the previous designs had to be addressed.

His next new project the C6R, had to be smaller, lighter and right hand drive to optimise weight distribution on a circuit with predominantly right hand corners.

Cunningham C6R, Goodwood Festival of Speed

The C6R was also originally intended to be powered by a race bred 340 hp 4.5 litre / 274 cui Ferrari V12 motor of the type more commonly found in a Ferrari 375MM of the type he had run at Le Mans in 1954 for Phil Walters and John Fitch.

Cunningham C6R, Goodwood Festival of Speed

Responsibility of the design for the body of the C6R was handed over Herbert “Bud” Unger who had worked on the bodies of the Cunningham C4R and C5R Cunningham’s as a metal worker.

In correspondence with me, about the design, Mr Unger said; “The engineers wanted maximum air flow to the brakes front and rear…” These were 13 inch air cooled drum brakes, prone to fading when hot. “I made the front air intake as large as possible and also extra air intakes on both sides beside the main grille air intake.

Cunningham C6R, Goodwood Festival of Speed

Next, I tapered the side of the body in from the front fenders all the way back to the rear fenders and by large air scoops to get maximum ram air into both rear brakes.”

By the time the car appeared at Sebring in 1956 with it’s unpainted aluminium body, crafted by “a man form Europe that was an expert with the (English) wheel.

Cunningham C6R, Goodwood Festival of Speed

Briggs, for reasons unknown, compromised the original design criteria by fitting a modified 3 litre Indy 500 engine running on petrol instead of the usual alcohol brew.

Le Patron shared the driving at Sebring with John Gordon Bennett and they retired from the race on the 54th lap after the clutch disintegrated.

Cunningham C6R, Goodwood Festival of Speed

When the C6R appeared at Le Mans the body had some alterations including a single smaller front intake and a D-Type Jaguar like headrest and rear fin and the car ran over the weekend with the rear brake cooling intakes in open and blanked off configurations.

During the course of it’s second race Briggs and Sherwood Johnson found the C6R started loosing gears and it retired from 13th place after 18 hours after the engine had enough of pushing the car round in forth, top, gear only.

Cunningham C6R, Goodwood Festival of Speed

Briggs Cunningham raced the car one more time in 1955 at Road America where the Offy motor again expired for good.

The car did not run again until 1957 by which time a 3.8 litre 6 cylinder Jaguar six cylinder motor had been fitted.

Cunningham C6R, Goodwood Festival of Speed

Briggs raced the car on four occasions with a best known result of 9th at Lime Rock in June 1957.

The car was permanently retired to Briggs Cunningham’s collection thereafter which has since become part of the Collier Collection. It is seen here at recent Goodwood Festival of Speed meetings.

My thanks to Mr Unger, Cunningham Motorsport Historian Lawrence W. Berman, Paul Kierstein from the photo archive and Sondre Kvipt in Norway who facilitated my correspondence with Mr Unger. Thanks also to Herbert at The Nostalgia Forum who brought up the subject of the C6R’s blanked off rear air intakes.

Thanks for joining me on this “Smaller, Lighter, RHD” edition of “Gettin’ A L’il Psycho On Tyres” I hope you will join me for Ferrari Friday tomorrow. Don’t forget to come back now !

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